Saeed, Tareq, Muhammad Adil Khan, Asma Bibi, Shahid Khan, and Yu-Ming Chu. “Approximation of the Jensen Gap for First Order Differentiable Functions”. Contemporary Mathematics 6, no. 5 (August 29, 2025): 5751–5764. Accessed June 13, 2026. https://ojs.wiserpub.com/index.php/CM/article/view/7588.